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ORO VALLEY WATER UTILITY
COMMISSION
ANNUAL REPORT
APRIL 2015
TOWN OF ORO VALLEY
WATER UTILITY COMMISSION ANNUAL REPORT
APRIL 2015
TABLE OF CONTENTS
Page
About the Water Utility Commission......................................................................1
ExecutiveSummary................................................................................................3
CustomerService Section........................................................................................9
Meters Operations Section.....................................................................................11
WaterQuality........................................................................................................12
CurrentWater Supply............................................................................................15
Water Resource Planning and Management..........................................................20
Water Conservation Program.................................................................................23
Production Division and Distribution Division.....................................................26
Security and Emergency Response Plan ................................................................30
Engineering and Planning Division.......................................................................31
Financial Highlights...............................................................................................36
Appendices
A. Utility Statistics
B. Capital Improvement Program
C. Acronyms and Glossary
TOWN OF ORO VALLEY
WATER UTILITY COMMISSION
ANNUAL REPORT 2015
ORO VALLEY TOWN COUNCIL
Satish I. Hiremath, D.D.S., Mayor
Lou Waters, Vice Mayor
Brendan Burns, Councilmember
William Garner, Councilmember
Joe Hornat, Councilmember
Mary Snider, Councilmember
Mike Zinkin, Councilmember
ORO VALLEY WATER UTILITY COMMISSION
Rick Davis, Chair
Rick Reynolds, Vice Chair
Javier Arriaga, Commissioner
Anne Campbell, Commissioner
Winston Tustison, Commissioner
Shanna Weagle, Commissioner
WI]iiW& r\_y
Greg Caton, Town Manager
Philip C. Saletta, P.E., Water Utility Director
David Ruiz, Engineering Division Manager
Shirley Seng, Water Utility Administrator
Special recognition to OV WU staff that provided graphics, data, photos and their time to
assist in the preparation of this report:
Kam Boyce Iris L. Chaparro Robert Jacklitch
Jeff Kane George Kendrick Mary C. Kobida
Skip Kyle Mark Moore Carolyn Schneider
Charles Soper Adam Pence
1 ABOUT THE WATER UTILITY COMMISSION
I 1 In March of 1996 the Oro Valley Town Council (Mayor and Council) created the Oro Valley
I 1 Water Utility Commission (Commission) to act as the official advisory body to the
Mayor and Council. The first Commission was appointed in October of 1996. The
l l Commission is composed of five to seven members appointed by the Mayor and Council.
l 1 Commission members serve a term of three years, and are limited to a maximum of two
successive terms. The Commission makes recommendations to Council on items such as
l l water policies, water rates and fees, renewable water supplies and water conservation.
The Commission meets the second Monday of each month to discuss and review matters
Il JI pertaining to the Water Utility. The Commission welcomes the public to attend its meetings.
In addition to the regular Commission meetings, there were several meetings conducted by
three standing Subcommittees: the Finance Subcommittee, the Conservation Subcommittee
and the Water Resources Subcommittee.
Notable actions taken by the Commission in 2014 include:
➢ Election of officers
➢ Recommendation for acceptance of the Annual Report
➢ Recommendation for an increase in water rates and fees
➢ Recommendation for a decrease in the groundwater preservation fees
➢ Recommendation for an offer to purchase long-term storage credits
➢ Recommendation to apply for 2017 Hoover power reallocation
JNotable issues that will be addressed in 2015 include:
➢ Continued planning for long-term CAP water delivery
➢ Review of water rates analysis and developing a Preferred Financial Scenario
➢ Review of reclaimed water IGA
➢ Review possible acquisition of Groundwater Extinguishment Credits
➢ Review of cash reserve policy and the Groundwater Preservation Fees
The Commission and staff would like to thank and acknowledge Robert Milkey, Elizabeth
Shapiro, and Richard Verlaque for their dedication and service on the Water Utility
l Commission through December of 2014.
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WATER UTILITY COMMISSION 2015
Richard Davis, Chair
Javier Arriaga, Commissioner
Winston Tustison, Commissioner
Richard Reynolds, Vice Chair
Anne Campbell, Commissioner
Shanna Weagle, Commissioner
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EXECUTIVE SUMMARY
TOWN OF ORO VALLEY
WATER UTILITY COMMISSION
ANNUAL REPORT
APRIL 2015
n This report is intended as a resource for both the Council and the public. The goals of the report
J are to fulfill Town -mandated reporting requirements as well as to provide clear information on
the ways the Utility operates and ensures present and future availability and delivery of quality
j� water. It includes topics on customer service, water quality, water supply, water resource
II JJ planning, conservation and capital improvements. This report covers information and
activities primarily for calendar year (CY) 2014 ending on December 31, 2014. However,
some information is only as of fiscal year ending June 30, 2014 and is noted as such in the
report.
IOVERVIEW OF THE TOWN OF ORO VALLEY WATER UTIITY
The Town of Oro Valley Water Utility was established in 1996 as a municipally -owned self-
supporting enterprise that is overseen by the Town Council. It is financially separate from the
Town's General Fund. Revenues are generated from rates and fees and no tax dollars are used to
fund the Utility.
The Utility's primary goal is to provide a safe and reliable water supply for our community.
It operates two potable water systems: one serving the Oro Valley Water Service Area
(OVWSA) and one serving customers outside Town boundaries in the Countryside Water
Service Area (CSWSA). The Utility also operates a non -potable reclaimed water system for
irrigation purposes.
The Utility is organized into the following main Divisions: Administration Division which
includes the Customer Service Section and the Meter Operations Section, the Engineering
and Planning Division, the Production Division and the Distribution Division. Currently
there are 37 full-time employees and one part-time employee at the Utility.
The following describes some of the Utility's resources and infrastructure as of December
31, 2014:
Resources:
Groundwater Supply (Assured Water Supply):
Reclaimed Water:
Effluent Water:
CAP Water Allocation:
Long Term Storage Credits:
Groundwater Allowance Account:
13,384 acre feet per year
2,227 acre feet per year
1,773 acre feet per year
10,305 acre feet per year
11,248 acre feet
14,150 acre feet
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Infrastructure:
Water Distribution Storage Reservoirs:
19
Potable Water Reservoir Capacity:
11,600,000 gallons
Reclaimed Water Reservoir Capacity:
1,500,000 gallons
Potable Water Mains:
350.2 miles
Reclaimed Water Mains
13.8 miles
Potable Water Booster Stations:
25
Reclaimed Water Booster Stations:
2
Operating Wells:
22
In 2014, the Utility had 19,107 customer connections serving a population of 41,884.
Approximately 2.284 billion gallons (7,010 acre feet) of potable water was delivered to our
customers. In addition, approximately 719 million gallons (2,206 acre feet) of reclaimed
water was delivered.
CUSTOMER SERVICE SECTION
In 2014 the Utility experienced a 1.01 % growth rate in customer connections, with 191
new meters installed. Customer service staff responded to 34,387 customer contacts,
averaging 138 contacts per day. Technology such as computer tablets and advanced metering
software are used to improve communication and increase efficiencies. Customer Service
processed 227,317 bills, collecting a total of $25.5 million which includes billing and
collection for Pima County Wastewater Reclamation and the Town of Oro Valley Storm Water
Utility. Payments were posted as follows:
• Oro Valley Water Utility $15,971,000
• Pima County Wastewater Reclamation $ 8,768,000
• Town of Oro Valley Storm Water Utility $ 761,000
METER OPERATIONS SECTION
During 2014, the meter operations team completed Phase II and began Phase III of the
Utility's Advanced Metering Infrastructure (AMI) project and meter replacement program.
Phase III is expected to be completed in July of 2015. The final phase, Phase IV, is expected
to be complete in March of 2016. The new meters provide more accurate measurements of
water, automate meter readings, increase customer service capabilities and can help
customers better manage their water.
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WATER QUALITY SECTION
j For the thirteenth consecutive year, the Utility is proud to report that it did not experience
J any water quality violations. In 2014 the Utility received 1,360 analytical results for required
water sampling and operational data.
Over the course of a year the Utility collects hundreds of water samples from approximately
19 "point of entry" sites. These sites include groundwater wells, reservoirs and pumping
stations. The Utility also samples from 58 sampling stations on our water system as required
by the Arizona Department of Environmental Quality. Our water quality was in compliance
with all standards established by federal and state agencies.
The Utility remains up-to-date with testing protocol and in 2015 expects to phase in five
proposed and pending regulations related to monitoring rules. As a precaution against
bacterial growth, the Utility continues to disinfects its water source by adding sodium
hypochlorite solution at a level of 0.2 to 0.8 parts per million. In addition, the Utility
continues its Backflow Prevention Program -installing, testing, repairing and replacing
1 equipment that keeps the water supply safe from contaminants that could be introduced into
J the distribution system through backflow or back pressure from customer plumbing systems
or internal processes.
CURRENT WATER SUPPLY
Oro Valley currently delivers water from three sources of supply: groundwater, Central
Arizona Project (CAP) water and reclaimed water. Groundwater is pumped from wells in the
1 aquifer below the water service areas and delivered through the potable water distribution
J systems. In CY 2014, the Utility pumped 5,612 acre feet (1.83 billion gallons) of
groundwater from its wells: the Oro Valley Water Service Area (OVWSA) wells produced
J5,029 acre feet (1.64 billion gallons) and the Countryside Water Service Area (CSWSA)
wells produced 583 acre feet (190 million gallons). The total pumped from our wells was
381 acre feet (124.15 million gallons) less than in 2013. This reduction is due to the
continued and additional delivery of CAP water as well as continued use of reclaimed water
and water conservation efforts.
In 2014, groundwater declined in the Oro Valley aquifer, but less in CY 2014 than in CY
2013. Well water levels in OVWSA declined an average of 1.58 feet in CY 2014 compared
to 2.76 feet in CY 2013. Water levels in CSWSA rose an average of 0.70 feet in CY 2014
compared to an average decline of 2.21 feet in CY 2013.
l Reclaimed water is delivered through a separate reclaimed water distribution system that
Jsupplies irrigation for golf courses, athletic fields, parks and construction. In 2014, the Utility
delivered 2,206 acre feet of reclaimed water. The reclaimed water system was extended to
Jdeliver reclaimed water to Naranja Park.
Central Arizona Project (CAP) water is delivered to the Utility's potable water system
through the Tucson Water Distribution System. In 2013, our CAP water delivery totaled
1,530 acre feet.
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An additional 500 acre feet was developed in 2014, raising the Utility's CAP water
delivery capacity to 2,000 acre feet. In 2014, the Utility delivered 1,828 acre feet
(595.54 million gallons) of CAP water. The Utility also uses CAP water indirectly by storing
it at various recharge facilities to obtain groundwater storage credits within the Tucson Active
Management Area. In 2014, the volume stored increased to 9,000 acre feet; in 2013 the Utility
stored 7,000 acre feet. In 2014, some of these credits were used to replace groundwater
depletions and the remainder were stored as Long -Term Storage Credits for future use.
WATER RESOURCE PLANNING AND MANAGEMENT
The Utility plans to reduce water demands through conservation efforts and increase supply
through further development of renewable sources to preserve groundwater and serve
growth. An additional 1,500 acre feet of CAP water will be developed for delivery of potable
water to serve new growth in the next 10 years. The Utility will continue to look for
opportunities to expand the customer base of the reclaimed water system. Over the next
several years, the Utility also plans to continue purchasing all of its CAP water
(10,305 acre feet), to deliver to our customers and storing the remainder to build up Long
Term Storage Credits. It is anticipated that an additional 10,000 acre feet could be stored in
our Long -Term Storage Credit accounts over the next four to five years. If current drought
conditions in the Colorado River Basin persist and no other action is taken, projections
suggest that CAP deliveries to municipal water providers may be reduced in the 2026 to 2030
time frame. If our CAP deliveries are reduced in the future, the Utility plans to use these
Long -Term Storage Credits and also utilize some of the water that has been stored by the
Arizona Water Banking Authority.
WATER CONSERVATION
An important component of resource planning for the Utility is the Water Conservation l
Program. This program saves our customers money, serves the community's stated
environmental conservation values and stretches existing water supplies by reducing average
customer water demand. The Utility primarily encourages water conservation by
informing and educating our customers. Specifically in 2014,
• 564 students participated in our Youth Water Conservation Education Program
for elementary schools in Oro Valley
• 113 customer water audits were performed. These on -site reviews identify
specific ways the customer can reduce water use. According to data based on
audits performed in 2013, the average water savings was 14.5% in the first year (_
after the audit
• AquaHawk is now available to those customers with AMI meters as an online
service that shows hourly water use and will send personalize alerts to help l_
customers better manage daily water use and detect leaks
• Community outreach activities such as speaking engagements, conservation
presentations at homeowner associations and participation at other community L
events. These include National Night Out, a local wellness fair and the Oro
Valley Water Harvesting Tour f
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PRODUCTION DIVISION AND DISTRIBUTION DIVISION
The Production Division staff continues to be proactive in the implementations of facility
upgrades and a preventative maintenance program; 49 facility sites are maintained and
evaluated annually to determine necessary upgrades. They are also responsible for the
installation and maintenance of security devices; baseline security installations are complete.
In 2014 they responded to more after-hours calls (675, up from 359 in 2013) and completed
more work hours related to assigned work orders (5,342, up from 4,772 in 2013). Other
notable highlights in 2014 include building 22 site chlorine storage sheds, deactivating two
wells, changing -out all well and booster air relief valves and constructing parking areas at the
reclaimed water reservoir site.
Distribution Division staff are responsible for the operation and maintenance of 350.2 miles
of potable water mains, 13.8 miles of reclaimed water mains for a combined total of 364
miles of water mains. There are 2,147 fire hydrants and 7,844 valves on the water
distribution system. Special projects in 2014 include the installation of water mains and
conduit for cable at Naranja Park, installation of the water service and fire service lines at the
Wellness Clinic, installation of the water service line for a drinking fountain and the
installation of a water meter and by-pass valve for delivery of CAP water to the Countryside
Water Service Area.
ISECURITY AND EMERGENCY RESPONSE PLAN
J In 2014 Utility personnel, with the assistance of a security consultant, reviewed, refined and
updated its security program, Emergency Response Plan and the Business Continuity Plan.
Emergency response training classes and exercises were also completed by Utility staff. In
J2014 the Utility installed 45 new hydrant defenders and locks to protect the water system.
ENGINEERING AND PLANNING DIVISION
l In 2014, the Utility inspected and approved 14 new development projects, 4 capital projects
Jand 6 projects constructed by Utility personnel. The completion of these new development
projects together with capital projects added approximately 4.5 additional miles of pipeline
to the existing potable water distribution system. In 2014, two design projects began. One for
a new potable main on Lambert Lane west of La Canada and the other for relocation of
portions of the reclaimed water main on Tangerine Road. Several construction projects were
J continued, completed and/or started, including a valve replacement project, a CAP
interconnect project on Calle Buena Vista; a system connection project on Glover Road, a
potable water main installation on Naranja Road, improvements and upgrades at
1 Countryside Well CS2 and an extension of the reclaimed water line on Naranja Road.
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FINANCIAL HIGHLIGHTS, WATER RATES AND FEES I.
The Utility continues to be fiscally sound. It met all revenue requirements, exceeded the debt t
service coverage ratio requirements and maintained adequate cash reserves. On April 9, 2014, l
Fitch Ratings affirmed the Utility's AA- bond rating with a stable outlook.
The Water Utility Commission and Town Staff annually review and develop
recommendations for water revenue requirements, water rates and fee structures. In 2014,
recommendations regarding water rates, fees and charges were provided in the Water Rates
Analysis Report. The recommendations included a slight increase in the water commodity
rates and a slight decrease in the groundwater preservation fee. Both of these water rate
recommendations were approved by Council on January 7, 2015.
New water impact fees were developed in accordance with statutory requirements and
approved by Council on April 2, 2014. The new impact fees became effective on July 1,
2014. The water impact fees will fund expansion of the water delivery system and will be
collected to ensure that growth pays its fair share.
CONCLUSION
The Oro Valley Water Utility Commission is proud to serve the Mayor and Council of the
Town of Oro Valley and its residents and customers. We are pleased to present this Annual
Report to the Mayor and Council for their consideration.
Any questions regarding this report should be directed to Philip Saletta, Director, Oro Valley
Water Utility at 229-5010. Additional information for the Oro Valley Water Utility can also
be found on the Town website at www.orovalleyaz.gov/Town_Government/WaterUtitity.
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CUSTOMER SERVICE
Customer service responsibilities range from handling a payment to responding to questions
J or problems related to billing, opening or closing an account, water quality or pressure and
flow problems. Customer Service Representatives (CSRs) work closely with field personnel
�j to respond in a timely manner to customer concerns. CSRs are generally the first and
J sometimes the only contact our customers may have with the Utility. Providing professional
and courteous service is paramount to the successful operations of the Water Utility. In 2014,
Customer Service staff received numerous compliments from our customers thanking them
1 for the high quality level of service.
Customer Service personnel include CSRs and Utility Operators. This staff is responsible for
meter reading, meter installation, billing, collection and customer service for 19,107 water
service connections serving 41,884 residents. The Utility has grown over the past year and in
2014 an additional 191 meters were installed for a growth rate of 1.01%. Over 5,439
customer accounts were changed in 2014 primarily due to opening and closing of accounts
for new move -ins and winter residents.
In 2014 the Utility delivered:
• 2.284 billion gallons (7,010 acre feet) of potable water
• 719 million gallons (2,206 acre feet) of reclaimed water for irrigation to five golf
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courses and a school athletic field.
• Combined total of 3.003 billion gallons (9,216 acre feet) of water delivered and
billed to our customers.
The Customer Service Division mailed and processed 227,317 bills and 11,534 delinquent
notices to our customers during calendar year 2014. The Customer Service Division responds
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to customer concerns that arise from the operation and management of the water system and
in 2014 responded to 34,387 customer contacts averaging 138 contacts per day.
Customer Service generates monthly bills for the Water Utility, Pima County Regional
Wastewater Reclamation Department and the Town's Storm Water Utility. The Water Utility
is separate from the Oro Valley Storm Water Utility as well as from Pima County
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Wastewater Utility and only bills and collects for those entities under existing agreements. In
2014, the Utility collected a total of $25,500,000 and posted payments as follows:
• Oro Valley Water Utility $15,971,000
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• Pima County Wastewater Reclamation $ 8,768,000
• Town of Oro Valley Storm Water Utility $ 761,000
In 2014 the Water Utility began collecting donations for the Youth Roundup Program
sponsored by the Parks Department. Donations are accomplished by "rounding up" their
water bill to the nearest dollar amount, donating a specific amount monthly or a one-time
donation. The Water Utility also collects taxes on water use that are imposed by the State of
Arizona and the Town of Oro Valley. These taxes are distributed to the State, Pima County
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and the Town. The Water Utility receives all of its revenues from water rates and fees and
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does not receive any funding from taxes.
The customer account information on the Water -on -the -Web site includes the ability to view
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the current water bill, a two year history of billing, payments and water usage information.
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Customers may also pay their water bill online from this website. The Utility provides
convenient alternative payment methods for our customers. During 2014, the Utility received
$2.29 million in credit card payments. Payment options are listed below:
• Credit cards
o By telephone using atoll free number
o Online at the Water -on -the -Web site
o In person at the Utility office
• Automated Clearing House (ACH)
o The bill amount is automatically transferred from the customer's bank account
to the Utility's bank account on the bill due date.
• Electronic Funds Transfer
o A bank to bank transfer of funds to pay their bill when requested by the
customer through their own online banking services on the date of their
choice.
The Utility also offers a "paperless" E-bill feature. After the bill has been generated, the
customer receives an electronic notification that their current water bill is available on the
Water -on -the -Web site. Utility customers may request e-billing on the Utility's website.
The F1exNet, software associated with the Advanced Metering Infrastructure (AMI) project
is a valuable tool that enables Customer Service staff to view customer consumption data and
accurately determine high water use on their computers while communicating directly with
the customer in person or on the telephone.
Where AMI equipment is installed, F1exNet software continues to facilitate the monitoring of
leaks on a daily basis. Utility staff provides early leak notification to our customers that
conserves water by reducing the amount of water wasted by leaks and also saves our
customers money. This new technology monitors water use on an hourly basis, can trigger
alerts and allows for better utilization of resources with the least amount of waste. Since the
installation of AMI, the lost and unaccounted for water has decreased from as high as 9.86 %
to 5.16%.
AquaHawk, the customer web portal launched in 2013, utilizes the water usage data from
F1exNet. Once a customer is enrolled in this on-line service, they are able to view their
individual water use on an hourly, daily, weekly or monthly basis. Customers can tailor
personal notifications based on their individual preferences and receive alerts by e-mail, text
or telephone. The web portal is available for customers once their meters are replaced with
AMI equipment.
As the Customer Service Division looks to the future they will continue to use new
technology to streamline procedures and increase efficiencies. Utilizing computer tablets,
staff electronically sends and distributes work orders, service requests, and new and closed
account paperwork from the office to field staff. Employing this technology has reduced staff
travel time, wear and tear on vehicles and gasoline and has resulted in higher efficiency and
productivity.
Utility statistics including meter installations, the number of customer contacts, and water
deliveries for CY 2014 may be found in Appendix A.
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METERS OPERATIONS
During 2014, the meter operations team continued with Phase II and Phase III of the AMI
project and meter replacement program in the Oro Valley Water service area. The meter
(� operations team worked closely with external contractors and took the lead role in
(� organizing, planning, and scheduling work. The contractor is responsible for replacing all
residential meters ranging in sizes from 5/8-inch through 1-inch. Meters staff are responsible
(� for installation of commercial and irrigation meters and the programming of smartpoint
J transceivers. Remaining phases of the project will be completed as shown in the table below.
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Service Area
Number of Meters
Date Completed
Estimated Completion Date
Countryside
2,244
12/31/11
Oro Valley Ph. I
2,477
06/30/13
Oro Valley Ph. II
4,067
08/31/14
Oro Valley Ph. III
5,374
06/30/15
Oro Valley Ph. IV
4,950
03/31/16
The AMI and meter replacement program provides for more accurate measurements of water
usage and also assures that the volume of water used and billed is accurate. Additionally,
using AMI technology provides increases customer service with accurate and complete water
use information. With AMI software, Utility staff and customers can review water use
history on an hourly, daily, weekly and monthly basis. This is extremely valuable in assisting
our customers. Utility staff are able to troubleshoot potential leaks, usage from irrigation
systems and overall water consumption at the home. Experiencing the benefits and
efficiencies gained by using AMI, meter operations staff is excited about expansion of this
technology throughout the Oro Valley Water Service Area.
The AMI and meter replacement program will continue to provide human resource and
technological benefits in the future to increase productivity. AMI technology provides an
opportunity to use existing human resources more efficiently by eliminating the need for
labor intensive manual meter reading. The meters team will be able to redirect their focus and
capabilities to other areas of responsibility including customer work orders, meter box
cleaning, angle meter stop repairs, meter testing procedures, new meter installations and
assisting the Water Distribution Division.
The technological advancement with the AMI project prompted the Water Utility to
incorporate the use of computer tablets. These tablets provided the meter operations team
new capabilities that include the ability to generate or close work orders, receive and send
reports, view real time customer usage and verify delinquent account payments in the field.
The team will operate more efficiently and increase productivity by significantly reducing
l travel time since there will no longer be a need to return to a central location to get the
J required information.
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J
WATER QUALITY
There is a complex and extensive framework of regulatory requirements and sampling
methodology in place to ensure clean, safe drinking water is served by every public water
system in Arizona. Protection of drinking water quality starts with an assessment of the
drinking water source quality and continues through regulations that govern water system
design and construction. Finally, drinking water quality is assured through scheduled tests
required of all public water systems for a wide variety of potential contaminants. As a result
of these regulations and continued testing, drinking water supplies in Oro Valley and in many
areas throughout the United States are among the cleanest and safest in the world.
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Water Quality Testing
The Water Utility operates two separate potable water systems. The Oro Valley Water
Service Area (OVWSA) that has a Public Water System Number of AZ0410164. It also
operates a potable system that is not located within the Town boundaries, known as the
Countryside Water Service Area (CSWSA) that has a Public Water System Number of
AZ0410175.
In 2014 the Utility received 1,360 analytical results for required water sampling and
operational data. Over the course of a year the Utility collects hundreds of water samples -
from approximately 19 "point of entry" sites. These sites include groundwater wells,
reservoirs and pumping stations. The Utility also samples from 58 sampling stations required
by the Arizona Department of Environmental Quality (ADEQ). These stations are located in L
neighborhoods throughout the water distribution system specifically selected to represent the
water quality that is delivered to our customers. The Utility has an additional twenty-nine [
sampling stations that can be used during emergencies and to meet future testing
requirements. Water samples are taken from 50 private residences within the Oro Valley area
and tested for lead and copper. The Utility provides all water quality testing results to ADEQ
and works closely with that agency to ensure all Federal and State standards are met. The
website for ADEQ is www.azdeq.gov. The Town's water system is in full compliance with
all State and Federal regulations.
The Utility's state -certified water operators are responsible for the health and safety of our
customers. The operators meet this responsibility by maintaining a daily vigilance over the L
system's production, distribution, and water quality.
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The Water Utility has 19 water operators that are licensed by ADEQ and attend continuing
education and training through Personal Development Hours required by ADEQ.
Drinking water standards are regulations that the Environmental Protection Agency (EPA)
sets to control the level of contaminants in the nation's drinking water. These standards are
part of the Safe Drinking Water Act's "multiple barrier" approach to drinking water
protection which includes, assessing and protecting drinking water sources; protecting wells
and collection systems; making sure water is treated by qualified operators; ensuring the
integrity of distribution systems and making information available to the public on the
quality of their drinking water. Community water suppliers throughout the country are
required to provide an annual water quality report to their customers. The OVWSA and the
CSWSA Consumer Confidence Reports are annually distributed to all customers. The report
is also available in the Utility's office and on the website.
Detection of a contaminant in drinking water does not necessarily represent a threat to public
health. Due to current technology, water utilities are now able to detect extremely low levels
of contaminants in drinking water. All drinking water, including bottled water, may
reasonably be expected to contain at least small amounts of some contaminants and are well
below the MCL (Maximum Contaminant Level) required by EPA. Oro Valley's groundwater
contains naturally occurring dissolved minerals and organic compounds, which have been
leached from the rock, sediments, and plant materials through which the water traveled.
Other contaminants that may be present in source water are microbial contaminants, such as
viruses and bacteria. The Utility disinfects its water source by adding sodium hypochlorite at
a level of 0.2 to 0.8 parts per million as a precaution against bacterial growth. The Total
Coliform bacteria group is used as an indicator to more closely monitor the distribution
system for possible unwanted bacteria. During 2014, the Utility collected 696 samples for
analysis of Total Coliform bacteria, all samples were negative for bacteria. This is a direct
result of a successful disinfection program, effective system monitoring, proficient sampling
methods, and routine maintenance.
Water hardness is also tested and is a measurement of the concentration of calcium and
magnesium. During CY 2014, the hardness levels in Oro Valley range from 1.8 to 9.0 grains
per gallon. On average our water quality is in the soft to moderately hard range, which is
considered acceptable.
The Utility is in compliance with all Disinfectants and Disinfection By -Products Rules. The
Utility's also meets the Ground Water Rule requirement for disinfection and the EPA's rules
for lead and copper.
Proposed and Pending USEPA Regulations:
• Third Unregulated Contaminant Monitoring Rule
2015
• Revised Total Coliform Rule
• Fourth Unregulated Contaminant Monitoring Rule
• Revised Long -Term Lead and Copper Rule
• Carcinogenic Volatile Organic Chemicals Rule
• Epichlorohydrin and Acrylamide
Currently sampling February
January 2015
January 2015
September 2015
2015
TBD
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Oro Valley is a growing community in an and environment. The future of drinking water 1
quality will require continued attention by everyone involved with water supply for the
community. Water quality compliance requirements will continue to increase in both I
complexity and cost, requiring the support and resources needed to ensure regulatory
compliance and to provide a safe and reliable water supply to our customers.
BACKFLOW PREVENTION PROGRAM
Backflow prevention is an important component of water quality. The Town of Oro Valley
Water Utility implemented the Backflow Prevention Program in response to requirements set
forth in the Arizona State Drinking Water Regulations. The Backflow Prevention Program is
administered in accordance with the Town of Oro Valley Ordinance No. (0) 07-21, ADEQ I
Administrative Code, section R18-4-13115, the International Plumbing Code and the
guidelines of the University of Southern California Foundation for Cross Connection Control r
and Hydraulic Research.
The Backflow Prevention Program is designed to protect the public water system from high
risk service connections which include, but are not limited to, commercial, fire and irrigation.
By state statute single family residences are exempt unless a known hazard exists on the
premises.
There are 1,452 backflow prevention assemblies under the program that are located in our
water service areas. The Utility is required to notify each customer on an annual basis to have
each active assembly tested. An initial notification letter is mailed followed by a second and
final letter. The backflow prevention assemblies must also be tested if they are replaced,
relocated or repaired. Test data must be kept by the Water Utility for 3 years and all
assemblies are surveyed on a 3 year cycle. The backflow assemblies that are owned by the
Town and in service are maintained, tested and inspected by the Water Utility Backflow
Prevention Section.
The following are some of the major activities and accomplishments that were performed by
the Backflow Prevention Section in 2014:
➢ 197 backflow assemblies owned by the Town of Oro Valley were tested L
➢ 76 repairs on in -ground and construction water backflow prevention assemblies
➢ 127 permits for new and replacement backflow prevention assemblies
The program works to keep the water supply safe from contaminants that could be introduced
into the distribution system through backflow, back siphoning or back pressure from our
customers plumbing systems or internal processes.
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CURRENT WATER SUPPLY
The Town has Developed Water Resources and Undeveloped Water Resources. Developed
Water Resources are those sources of water supply that have infrastructure in place to deliver
the water directly. These directly delivered supplies are sometimes referred to as "wet'
water. Undeveloped Water Resources are those sources of water supply that do not have
infrastructure developed to deliver them directly at this time. These undeveloped supplies are
reserved for future use. The undeveloped supplies can also be stored as groundwater credits.
These credits can be used indirectly through recovery wells in accordance with state
regulations to replace groundwater depletions. The use of these credits to replace
groundwater usage is referred to as "paper" water when the infrastructure to produce the
groundwater is not located near to where the credits are stored.
Developed Water Resources
• Groundwater: 13,384 acre feet per year
• CAP Water: 2,000 acre feet per year
• Reclaimed water: 2,227 acre feet per year
The Town of Oro Valley has a groundwater supply of 13,384 acre feet per year based on its
Designation of Assured Water Supply (DAWS) from ADWR. Under our DAWS, for each
calendar year, our groundwater pumping cannot exceed this amount. We pump significantly
less than this amount annually. Regardless of the amount of groundwater pumped we are
required to replace or replenish the total amount pumped under Arizona Department of Water
Resources regulations. This replacement/replenishment can occur anywhere within the
Tucson Active Management Area, which is a state -regulated groundwater basin in Southern
Arizona. Development of our renewable water supplies has reduced our replacement
requirements and has decreased our groundwater level declines protecting and preserving our
aquifer.
The two ways the Utility can meet its replacement/replenishment obligation are to recover
our stored long-term storage credits and replace our groundwater depletions or to pay the
Central Arizona Groundwater Replenishment District (CAGRD) to replace or replenish our
groundwater depletions. The Town has a Member Service Area Agreement with CAGRD
that was approved by Resolution (R) 97-06. Through this agreement, the Utility has paid
CAGRD to meet all or part of its replacement/replenishment obligations in the past.
However, over the last two years the Utility replaced all of its obligations since all of our
wells have been permitted as recovery wells and we have utilized our groundwater storage
credits to meet all of our replacement/replenishment obligations. This has eliminated the
need to make costly payments to CAGRD for replenishment. The Utility plans to continue
storing more CAP water to meet its annual replacement/replenishment obligations and also
increase its long-term storage credits. It is less expensive for the Utility to buy CAP water
and then store and recover it than to pay CAGRD to replenish groundwater for us. However,
we will still remain a Member Service Area with CAGRD to keep that
replacement/replenishment option available into the future.
The Water Utility operates in two water service areas: the Oro Valley Water Service Area
(OVWSA) and the Countryside Water Service Area (CSWSA).
-15-
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The table below provides the total water delivery capacities and water demands for both
water service areas. The maximum daily usage occurred on June 27, 2014 for the OVWSA
and on June 29, 2014 for the CSWSA.
Well
CAP
Average
Maximum
Water Service Area
Capacity
Capacity
Demand
Demand
(MGD)*
MGD)
(MGD)
(MGD
Oro Valley (OVWSA)
13.44
1.77
5.83
8.25
Countryside (CSWSA)
2.23
0.94
0.65
0.79
*MGD = million gallons per day
In 2014, Oro Valley pumped 5,612 acre feet of groundwater from our wells and aquifer.
This total is 381 acre feet less groundwater pumping than 2013 due to our use of CAP
water, reclaimed water, and water conservation. The wells in the Oro Valley Water Service
Area produced 5,029 acre feet and the wells in the Countryside Water Service Area
produced 583 acre feet.
The following table graphs water usage from 2004 through 2014 depicting our reduction
of overall water use, reduction of groundwater usage and increase use of our renewable
reclaimed and CAP water.
TOTAL ANNUAL WATER PRODUCTION
12,000
10,000
8,000
m
0)
LL
m 6,000
Q
4,000
2,000
0
Town of Oro Valley
Gs.Rate
5,500 AF
10,502 AF
Town of Oro Valley
8, Countryside
OW Sus.Rate
6,380 AF 9,700 AF
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
CALENDAR YEAR
ee1GROUND WATER IIIIIIIIIIIIIIIIECLAIMEDWATER =CAP WATER
12,000
10,000
8,000
6,000
4,000
2,000
0
M
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The following table lists all production wells, the amount of groundwater pumped and their
water level changes as measured in January of 2015:
Well Water Level Chanae Summary
WELL #
Annual
Pumped
Acre - Feet
1 YEAR
CHANGE
2015
5 YEAR
CHANGE
2010 to 2015
5 YEAR
AVERAGE
2010 to 2015
Groundwater studies indicate that the Oro Valley aquifer has a sustainable groundwater
production rate of approximately 5,500 acre feet per year for the OVWSA and 880 for the
CSWSA. In 2014, Oro Valley pumped 471 acre feet less than the sustainable groundwater
production rate for the OVWSA wells and 297 acre feet less than the sustainable
groundwater production rate for the CSWSA wells. In the OVWSA, the average annual well
water level decline for the last 5 years is 1.50 feet and for calendar year 2014 there was an
J average well water level decline of 1.58 feet. For wells in the CSWSA, the average annual
well water level decline for the last 5 years is 2.11 feet and for calendar year 2014 there was
an average well water level rise of 0.70 feet. For all wells, water level changes in CY 2014
varied from a rise of 2.0 feet to a decline of 4.4 feet.
It is important to note that groundwater levels in our area are impacted by our pumping and
l the pumping from other nearby wells. Natural recharge from precipitation can also impact
J water levels annually and seasonally.
1 The continued use of our renewable water resources in 2014 has reduced our reliance on
J groundwater. The use of reclaimed water since October of 2005 has helped to reduce the
impact on the Oro Valley aquifer. The Town of Oro Valley currently has a reclaimed water
supply of 2,227 acre feet per year as designated in our Assured Water Supply. In 2014, the
Utility delivered 2,206 acre feet of reclaimed water. The reclaimed water system supplies
irrigation for five golf courses, athletic fields at one elementary school and Naranja Park.
J -17-
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In 2014, the Utility extended the term of the Reclaimed Water Intergovernmental Agreement
with Tucson Water for an additional year through October of 2015. This extension will allow
for time to evaluate if interruptible reclaimed water service from Tucson Water is feasible.
The Reclaimed IGA will also be reviewed for any other potential changes.
Groundwater pumping was further reduced this year through the continued delivery of our
CAP water under a wheeling agreement with Tucson Water. This intergovernmental
agreement (IGA) currently allows for the nominal delivery of 2,000 acre feet per year of our
CAP water. In 2014, the Utility delivered 1,828 acre feet of our CAP water under the
wheeling agreement and through the connections to the Tucson Water system.
Future development of these renewable water resources will further reduce our groundwater
production. This diversification of our supply has benefited our aquifer by preserving and
protecting our groundwater.
The Town currently has undeveloped water resources that consist of our CAP water
allocation, Long -Term Groundwater Storage Credits, Groundwater Allowance Account and
effluent water.
Undeveloped Water Resources
• Central Arizona Project (CAP) Water: 8,305 acre feet per year
• Long -Term Storage Credits: 11,248 acre feet
• Groundwater Allowance Account: 14,150 acre feet
• Effluent Water: 1,773 acre feet per year
Development of our reclaimed water system and our CAP water provide renewable "wet
water" supplies to our community reducing groundwater use. The Long -Term Groundwater
Storage Credits are used indirectly through recovery wells as "paper water" credits that offset
groundwater usage. In 2014 using these renewable supplies and credits eliminated any
obligations to the CAGRD and protected and preserved our groundwater.
The Town currently has a total allocation of CAP water in the amount of 10,305 acre feet per
year under a Municipal and Industrial (M&I) subcontract with Central Arizona Water
Conservation District (CAWCD). Of this amount, 2,000 acre feet are developed under the
IGA with Tucson. The remaining 8,305 acre feet of our CAP M&I subcontract water is
critical to the Town to store credits and for future water supply.
After use in the reclaimed water system, the remaining amount of undeveloped wastewater
effluent is used for obligations to Pima County and for the Southern Arizona Water Rights
Settlement Act (SAWRSA) obligations.
-18-
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In 2014, an additional 500 acre feet of our CAP water was developed to further reduce our
reliance on groundwater and to protect and preserve our aquifer. At this point there is no
infrastructure in place to directly deliver or directly recover the remaining amount of our
CAP water. The infrastructure to deliver our remaining CAP water will be developed based
upon our water demands, aquifer conditions and new growth.
The Utility has obtained permits to store CAP water at various recharge facilities. In 2014, a
total of 9,000 acre feet of our CAP water was stored at the locations and in the amounts listed
below:
• Kai Farms 4,000 acre feet
• Lower Santa Cruz Replenishment Project 2,000 acre feet
• Central Avra Valley Storage and Recovery Project 2,000 acre feet
• Pima Mine Road Recharge Project 1,000 acre feet
The Utility will continue to recharge CAP water for our recovery wells and to build long-
term storage credits until such time that our CAP water is needed for future delivery.
In addition to our long-term storage credits, our Groundwater Allowance Account (GWA)
must be used wisely and carefully managed over the next several years. Additional purchases
of Groundwater Extinguishment Credits will be evaluated and considered in the future to
increase the balance of the Groundwater Allowance Account.
Under our Designation of Assured Water Supply, we are required to comply with the Third
Management Plan in the Tucson Active Management Area. In 2014, we have been in
compliance with all the requirements under our DAWS and fully expect to meet all the
requirements in 2015.
19-
WATER RESOURCE PLANNING AND MANAGEMENT
The Water Utility continues its water resource planning efforts to assure a safe and reliable
water supply for our customers. Water resource planning will involve technical, financial,
legal, political, institutional and environmental issues. Involving the public will be a key
aspect of a successful program for future water supply. Water resource planning will involve
investigating alternatives for future water supply and delivery and will include the following:
➢ Water Conservation (see page 24)
➢ Groundwater development
➢ Reclaimed water system expansion
➢ CAP water planning and development
➢ Long -Term Storage Credits
Groundwater Development
Future groundwater development is included in the Fifteen Year Capital Projects Program for
the potable water system improvements. The demand on our wells has been significantly
reduced due to use of reclaimed water for irrigation and the delivery of our CAP water
through the Tucson Water system. The use of reclaimed and CAP water preserves and
protects our aquifer and valuable groundwater.
All groundwater depletions must be replaced through the use of our recovery wells, our
Groundwater Allowance Account and/or our Long -Term Storage Credits. We are no longer
reliant on the Central Arizona Groundwater Replenishment District (CAGRD) for
replenishment.
Our aquifer has benefited from the development of our renewable water and our well water
levels are declining less.
Reclaimed Water
The use of reclaimed water for turf irrigation has a beneficial impact on the Town's aquifer.
The Utility will continue to look for opportunities to expand the customer base of the
reclaimed water system for turf irrigation. In addition, non -turf irrigation uses such as
landscape irrigation, construction water, dust control and street cleaning uses may also be
served with reclaimed water to help reduce demands on the groundwater aquifer. The
Development and Infrastructure Service Department is currently using reclaimed water for
street cleaning and other approved maintenance purposes. This saves the Town both water
and money. In 2014, the reclaimed water system was extended to deliver reclaimed water to
Naranja Park for irrigation of athletic fields.
Central Arizona Project Water
The Town has executed an Intergovernmental Agreement (IGA) with the City of Tucson to
deliver a portion of the Town's CAP water wheeled through the Tucson Water system via a
connection to the Oro Valley Water Utility system. Phase I of the IGA with Tucson allows
for up to 2,000 acre feet per year of Oro Valley's CAP water to be delivered (wheeled)
through the Tucson Water system.
-20-
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This is a mutually beneficial project in that Tucson Water (TW) uses its excess capacity and
receives revenues that shares in operations and maintenance costs. Oro Valley benefits in that
it receives "wet" water deliveries of renewable CAP water and reduces its reliance on
groundwater and the Central Arizona Groundwater Replenishment District. In 2014, an
additional capacity of 500 acre feet per year was added for a total delivery capacity of 2,000
acre feet per year of our CAP water.
Oro Valley's CAP water is delivered from the CAP canal to Tucson Water's recharge
facilities at the Central Avra Valley Storage and Recovery Project and/or the Southern Avra
Valley Storage and Recovery Project. The water is then pumped into the Tucson Water
distribution system and then delivered to the Oro Valley water system near Naranja and
Shannon through TW's Naranja Reservoir and Booster Station.
In 2014, an additional 400 acre feet per year of our CAP water delivery capacity was added
to the south end of the Oro Valley Water Service Area through a pipeline connection
between TW and OVWU on Calle Buena Vista south of Calle Concordia. An additional 100
acre feet per year of our CAP water delivery also was added to the Countryside Water
Service Area on Camino de Oeste just north of Linda Vista Blvd.
Up to an additional 2,000 acre feet of our CAP water can be developed under the IGA with
City of Tucson subject to approval by to the respective Councils. As part of our long-term
planning an additional 1,500 acre feet of renewable CAP water will be developed for new
growth in the next 10 years. This will increase our total renewable CAP water deliveries to
3,500 acre feet per year. The cost for this future development of our renewable CAP water
for new growth was included in the Infrastructure Improvements Plan for the determination
of the Alternative Water Resources Development Impact Fee.
This development of a portion of our CAP water through the Tucson Water IGA provides
financial benefit to our customers in that it defers significant expense to develop a major
capital project. Oro Valley Water Utility will continue to plan for the development of the
remaining portion of our CAP water. Long-term plans for recharge and recovery and/or
treatment and direct delivery of our CAP water will be developed to determine the best
alternative and plan for delivering our CAP water in the future.
The Town of Oro Valley is committed to the use and future delivery of our CAP water to
meet the demands of new growth. We will continue to work regionally to deliver our CAP
water to our community.
Long -Term Storage Credits
1 The Water Utility will increase its Long -Term Storage Credits by purchasing all of its CAP
J water over the next several years. The portion of CAP water not used for direct delivery or
for recovery wells will build up our accounts for future water delivery. It is anticipated that
an additional 10,000 acre feet could be stored in our Long -Term Storage Credit accounts
over the next four to five years. In addition to our storage accounts, the Arizona Water
Banking Authority is storing water in the Tucson Active Management Area on behalf of
Municipal and Industrial CAP water subcontractors to protect against drought and shortages
on the Colorado River.
-21-
Colorado River
The Colorado River basin has experienced extended drought due to decreased precipitation
and snowpack. This has decreased flow in the river creating significant declines in the water l
levels in Lake Mead and Lake Powell. These reservoirs supply water to the Central Arizona
Project, other water projects in the lower basin states of Arizona, California and Nevada. In r'I
addition these reservoirs also provide required water deliveries to Mexico. In 2007, l
shortage guidelines were approved by the Secretary of the Interior and accepted by all
seven states within the Colorado River basin. Those guidelines specify three different
water levels in Lake Mead associated with a Tier 1, Tier 2, and Tier 3 shortages. In
addition, the guidelines specify the shortage sharing and associated reductions of
deliveries to each state for each of the tiers.
A Tier 1 shortage of CAP water is now predicted to occur in 2017. A Tier 1 shortage will
not reduce the quantity of CAP water delivered to municipal water providers within the
Central Arizona Project. Water deliveries from the CAP canal to Agricultural users will be
curtailed.
In accordance with the 2007 guidelines, a Tier 1 shortage will be declared when Lake Mead
water levels are at an elevation of 1,075 feet. This elevation of 1,075 is expected to occur in
2017 and a declaration of shortage would occur initiating the implementation of the shortage
sharing guidelines.
The 2007 shortage sharing guidelines outline further reductions in delivery of Colorado River l
water to the lower basin states if and when higher -tier shortages are declared. As such, if the
drought persists and no action is taken, it is expected that a portion of CAP deliveries to
municipal water providers could be reduced in the 2026 to 2030 time frame, Any CAP water L
deliveries would be replaced with CAP water previously stored underground.
Over the last decade, the Arizona Water Banking Authority (AWBA) has taken steps for the
state to guard against the impacts of drought and shortage by storing water underground. A
significant amount of water has been stored underground and this water will be made
available to municipal water providers to mitigate any curtailments of CAP water deliveries
to municipal water users.
In addition to the AWBA storing water, Oro Valley Water Utility continues to store its CAP
water and build up its long-term storage credits. This water will also be available to mitigate
any curtailments of CAP water deliveries.
The Arizona Department of Water Resources and the Central Arizona Project are currently in
discussions with the other Colorado River Basin states to investigate opportunities to keep
water in Lake Mead to prevent a shortage from occurring or reduce the amount of a potential
shortage.
The above actions combined with a diverse water portfolio can reduce the impacts of drought L_
and shortages. In addition, reducing demands through conservation and better water
management can help to preserve water supplies for the future.
-22-
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WATER CONSERVATION PROGRAM
Water conservation is an important factor in balancing our current and future water supply
needs. Climate and the demands on our water supply place a significant impact on our water
resources. Combine the state's and climate with persistent drought conditions and the
j� importance of managing our water resources effectively becomes even greater. The Utility
J recognizes the complexity and importance of sustained reliability.
rj The Water Conservation Program is an important element in the overall water resource
II 11 management efforts of the Utility. The following are services we provide to educate and
n inform our customers through the Conservation Program.
LJ
➢ AquaHawk Alerting
A9ft AquaHawk Alerting is a free service for Oro Valley
C(
Water Utility customers that will assist them in
efficiently managing their water usage and lowering
their monthly bills. The AquaHawk program is
multidimensional. It allows us to serve our customers at an operational level by direct contact
from office or field staff depending on the severity of the high water use. It also allows
customers to be proactive in monitoring their water use. In the past, customers were alerted
to a water problem typically upon receiving their water bill. With AquaHawk, the customer is
notified of high use within 72 hours of the actual usage.
The features and benefits of AquaHawk Alerting include:
■ Timely leak alerts that can be sent to a cell phone, home phone or email
• Reduction of water loss
■ Water use monitoring to identify problems quickly
• Water expense monitoring
➢ Water Audits
Water audits are the assessment of water use both inside and outside the home or
l business and include residential, commercial, and neighborhood common areas. Water
Jaudits are provided free of charge to utility customers.
113 audits were performed in 2014
■ 1,865 audits have been performed since the program began in 2003
• Water savings of 14.5% in the first year after the audit for audits
performed in 2013
I -23-
Water Audits Completed
2003 - 2014
300 254
250
205 185 179 178
200
.�N_'' 136 146 143
.a 150 113
82
Q 100
50
0
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
➢ Conservation Resources
A wide variety of conservation literature is available to Oro Valley customers at no cost
and is offered at the library and our main office. In addition to traditional literature, the
Utility provides public outreach efforts with the following:
■ Oro Valley Water Education Booklet for children
• Water -Wise Landscaping for Southern Arizona CD
• Water Ways Newsletter posted on our web site
➢ Youth Water Conservation Education Program
As part of our water conservation education efforts, the
Water Utility, with the help of Environmental
Education Exchange developed a youth water
conservation education program for Oro Valley schools
called Conservation Kids. Conservation Kids is an
interdisciplinary program that has been specifically
designed for first through third grade learners and
focuses on the water cycle, water supply, and water
conservation in Oro Valley and the Tucson Basin. This
program meets state education requirements. In 2014,
564 students were reached by this program.
To view the Conservation Kids video go to the following website:
http://www.youtube.com/watch?feature=player embedded&v=2zDNyEHTNA
-24-
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➢ Community Outreach
Conservation staff participated in the following community outreach opportunities:
■ Speaking Engagements
o Sun City Governmental Affairs
o Conservation training at various regional water providers
■ Water Conservation Program presentation at Homeowner Associations (HOA)
o Puerto Perdiz HOA
o Villages of La Canada HOA
o Carmel Pointe HOA
• Participation and attendance at other events
o Annual HOA Forum
o National Night Out
o Sun City Health and Wellness Fair
o Oro Valley Water Harvesting Tour
➢ Incentives
The current incentive program includes irrigation system rain sensors which are sold at a
reduced rate to our customers. It also includes low -flow shower heads and low -flow sink
aerators at no cost to our customers.
■ 672 rain sensors have been sold to date
A Rain Sensor Installation Guide is distributed by the Utility and is also available
on our website. The Guide is available in English and Spanish.
-25-
WATER UTILITY OPERATIONS - PRODUCTION AND DISTRIBUTION
All Production Division and Distribution Division personnel are operators licensed and
certified by the Arizona Department of Environmental Quality (ADEQ). The operators have
the direct responsibility to operate the water system(s) according to the regulations and rules
set forth by the EPA (40CFR141) and ADEQ (Arizona Administrative Code Title 18). Water f
systems are classified by the level of operator certification required by ADEQ. Operator
certifications are classified into one of four grades with Grade 1 being entry level and Grade
4 being the most advanced. For more information please visit the ADEQ website at
www.azdcq.gov.
Production and Distribution personnel work very closely to address any water system
problems. The Production and Distribution Divisions also provide on -call staffing to respond
to water system problems 24-hour 7 days per week. This on -call staffing utilizes a tiered
level after-hours response protocol that is in accordance with the developed Emergency
Response Plan.
Production Division
Water Utility personnel in the Production Division are responsible for the operation and
maintenance of the wells, booster pumps and reservoirs on two potable water distribution
systems and the booster pumps, metering stations and reservoir on the reclaimed water
delivery system. There are a total of 49 sites that are maintained by the Production Facilities
staff.
The two potable water systems are chlorinated systems controlled and monitored by the
Production Facilities Division. Chlorine dosage rates and residuals are monitored on a daily
basis. The potable system located within the Town of Oro Valley Water Service Area
(OVWSA) is a Grade IV Water Distribution and a Grade II Water Treatment system and
currently delivers water to twenty pressure zones and a consecutive system located at La
Cholla Air Park. The Public Water System Number for the OVWSA system is AZ0410164.
The potable system that is not located within the Town boundaries, known as the
Countryside Water Service Area (CSWSA), is a Grade III Water Distribution system that
currently delivers water to a single pressure zone at the Countryside development. The Public
Water System Number is AZ0410175 for CSWSA.
The groundwater production capacity within the OVWSA is currently 13.435 million gallons
per day (9330 GPM) with a storage capacity of 10.6 million gallons. The groundwater I
production capacity within the CSWSA is currently 2.23 million gallons per day (1548 GPM) l_
with a storage capacity of 0.90 million gallons. The CAP delivery capacity into the OVWSA
system is 1.8 million gallons per day (1250 GPM). The CAP delivery capacity into the
CSWSA system is 0.094 million gallons per day (65 GPM). L
The Production Facility Staff continues to be proactive in the implementation of facility
upgrades and a preventive maintenance program. Facility sites are evaluated annually to
determine necessary upgrades to ensure continued effective operation of the facilities.
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The following are some of the major activities and accomplishments of the Production
Facilities Division in CY 2014:
Maintained disinfection injection pumps and tested disinfection residuals daily at well
site injection points on systems AZ0410164 and AZ0410175.
➢ Performed mechanical and general maintenance at 18 wells, 27 booster stations and
19 storage tanks including follow-up electrical preventative maintenance.
➢ Performed the annual groundwater level survey and prepared the report.
➢ Assisted with seven reservoir exterior and interior inspections.
➢ Assisted with the well monitoring capital project and quarterly reports.
➢ Competently operated the potable and reclaimed systems utilizing the SCADA
system.
➢ Responded to after-hours calls totaling 675 work hours.
➢ Completed 5342 work hours related to assigned work orders.
➢ Performed SCADA network system maintenance on forty-four Remote Terminal
Units, two Master Controllers, two Human Machine Interfaces, and two Network
Servers.
➢ Assisted with the install of new SCADA HMI software.
➢ Performed daily chlorine tests and routine site checks.
➢ Maintained operational balance for CAP water delivery to the 10-164 and 10-175
systems.
➢ Continued meter replacement program with the installation of 13 ultrasonic flow
meters.
➢ Assisted Engineering with Energy Efficiency Program.
➢ Preformed and assisted with the installations specified by the Energy Efficiency
Program.
➢ Electrical preventative maintenance cataloging of all production sites.
➢ Assisted with the interior recoat of the 800K Countryside reservoir.
➢ Built 22 site chlorine storage sheds.
➢ Installed 5 air temperature transmitters.
➢ Install pump 6 at reclaimed water booster.
➢ Deactivated well D5.
➢ Deactivated well C7, Linda Vista booster and storage.
➢ Assist with TW CAP Buena Vista commissioning.
➢ Set up communications and regulated blending at well D9 for TW CAP Buena Vista.
➢ Change -out of all well and booster air relief valves.
➢ Constructed parking areas at the reclaimed water reservoir site.
The Supervisory Control and Data Acquisition (SCADA) system is continuously updated,
improved and programmed to streamline operational control, data trending, and alarm
annunciation. The SCADA system, a centralized industrial network, currently monitors and
controls all potable and reclaimed system facility sites. Utility staff monitors and operates all
water systems via the SCADA system on a twenty four hour seven day a week (24/7) basis.
The SCADA system has been upgraded with the latest Factory Talk View SE and Win 911
alarm software. XL Reporter report generation software has also been updated. Staff has
been working with the Town of Oro Valley IT department to harden the SCADA security
and secure HMI access. Production facilities staff is also responsible for the installation and
maintenance of security devices at the Utility's facilities. All baseline security installations
are now complete.
-27-
Distribution Division
Utility personnel in the Distribution Division are responsible for the operation and
maintenance of 350.2 miles of potable water mains, 13.8 miles of reclaimed water mains for
a combined total of 364 miles of water mains. There are 22,147 fire hydrants and 7,844
valves on the water distribution system. The staff conducts maintenance programs and
repairs that keep the distribution system functioning properly and efficiently minimizing
problems that are inherent to water distribution systems.
Documentation of maintenance and replacement of hydrants; pressure reducing valves, and
air release valves are collected in a database. A valve exercising program that helps monitor
equipment and develop maintenance cycles has been established. The program provides
information and equipment history data that facilitate a proactive replacement program.
The Distribution Division also has significant direct customer contact and responds to
customers regarding water quality and pressure or flow related problems in the field. The
Distribution staff continues to provide a high level of professional performance and
courteous service to our customers. The Division works closely with Customer Service and
responds to complex customer work orders such as high/low pressure complaints, water
quality, service line breaks, hydrant repairs, system pressure regulating valves, system air
relief valves and system flushing.
Repair of water line leaks are always treated as an emergency and are repaired quickly to
minimize impacts to our customers. The Distribution staff has also taken on more
construction responsibilities by repairing more main line and service line breaks. The
Division also is responsible for bluestaking all underground water mains. The Division is
responsible for maintaining 32 pressure reducing valves, 796 air relief valves and 893 drain
valve assemblies.
The following are some of the major activities and accomplishments that were performed by
the Distribution Facilities Division in CY 2014:
➢ Maintained, replaced and/or repaired 68 fire hydrants
➢ Flow tested 60 fire hydrants to assure fire protection
➢ Performed 108 tests and/or repairs for the maintenance and operation of the 22
pressure reducing valves
➢ Maintained, replaced and/or repaired 27 air relief valves
➢ Maintained, replaced and/or repaired 2 drain valve assemblies
➢ Performed 3,929 bluestakes for underground pipeline and facilities locations
➢ Responded to and repaired 3 water pipeline break
➢ Responded to 249 customer inquiries in the field
➢ Responded to and repaired 5 service line breaks
➢ Responded to 124 after hour call outs
Installed 45 new hydrant defenders
➢ Maintained 1,150 water valves/Replaced 6 main line valves
_28_
7
Special Projects constructed by the Distribution Division
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Narania Park Proiect
➢ Installed 1,919 Feet of 8-inch potable water main consisting of two 2-inch services
and I fire hydrant.
➢ Installed 1,869 Feet of 12-inch reclaimed water main.
➢ Installed 268 Feet of 8-inch reclaimed water main.
➢ Installed 1,867 Feet of 2-inch conduit for communications cable.
Naranja Park Pipe Installation
7 Wellness Clinic
➢ Installed 72 Feet of 4-inch fire service line.
➢ Installed 41 Feet of I -inch water service line.
Drinking Fountain on Tangerine Road
➢ Installed 34 Feet of 1-inch water service line.
Countryside CAP Project
➢ Installed 8-inch water valve by-pass and 2-inch water meter for CAP water.
M2
SECURITY AND EMERGENCY RESPONSE
Under current Federal guidelines, water operations personnel are considered first responders.
Though primarily mandated by State rules with public health responsibilities, water operators
also have a public safety responsibility with relevance to the water systems they are charged
with operating. First response staff and vehicles are placed in an after hours position to
directly respond to an emergency in order to minimize any impact on the water system.
Production Facilities and Distribution Facilities staffs coordinate their response actions and
will respond with an appropriate level of personnel to mitigate the problem. Any facilities
security situations also directly involve the Oro Valley Police Department as a first response
action.
In 2014, Utility personnel, with the assistance of a security consultant, reviewed, refined and
updated the security program, Emergency Response Plan, and the Business Continuity Plan
(BCP). The ERP and BCP are currently up to date regarding the Utility operational or
response situations, contact information and procedures. The changes are designed to protect
and "harden" the facilities against potential threats from the acts of people who wish to do
harm to the residents of Oro Valley.
In 2014, under the security program, a series of training classes and exercises were made
available and completed by the Utility Staff. This training is done on an annual basis as per
the guidelines from the Department of Homeland Security, FEMA, and the EPA. A town -
wide security training table -top exercise involving Water Utility personnel was conducted
this year by the Oro Valley Police Department. Operations personnel also receive emergency
management courses provided by ADEQ. The Utility will continue to implement the
elements defined in the VA, ERP and the BCP as well as those that may be identified through
the course of business.
The hydrant lock program continues to be implemented through the new development
process and all hydrants within Oro Valley systems are protected from illegal entry and use.
In 2014, 45 new hydrant defenders and locks were installed. Security features, which include
perimeter fencing, security walls, warning signage, motion sensors, and cameras at all active
production facilities, were inspected to maintain integrity.
The Water Utility also has the equipment and capability to test water samples under a first
response scenario. A continuing program has been initiated to chemically characterize [
("fingerprint') the water produced. This will help identify anomalies during a suspected
event involving water quality. These baseline data are taken on a monthly basis.
The Utility is kept abreast of local, regional and national security issues via weekly situation
reports provided by Water Information Sharing and Analysis Center (Water ISAC). The
Utility is also a member of the Arizona Water/Wastewater Agency Response Network
(AZWARN) which mutually cooperates with other water and wastewater providers in an L
emergency.
-30-
1 ENGINEERING AND PLANNING DIVISION
The Engineering and Planning Division is responsible for planning and managing the design,
construction and inspection of all new water infrastructures for the Town of Oro Valley as
well as planning for the delivery of new water resources to the Town. New water
infrastructure is constructed both through the Water Utility's capital improvement program
1 I and through the new development process whereby the developer builds and finances
projects that are then conveyed to the Water Utility.
Geographic Information System (GIS)
lJ The GIS section is responsible for managing and maintaining a Geographic Information
l� System data base on all existing water system infrastructure in coordination with the
Information Technology Department. Maps produced by GIS staff facilitate Operations and
Planning and Engineering. In the development and implementation of our Energy Efficiency
Program, GIS plays a very instrumental role by providing the baseline information for our
recently calibrated distribution system model. The model will also interface with SCADA
and the meter billing system to more accurately determine the amount and location of system
demands.
New Development
The New Development Section is responsible for facilitating development by reviewing and
approving water improvement plans for proposed new developments. In 2014, the New
Development Section reviewed and approved 9 water improvement plans submitted by
developers for construction. In addition, 14 plans, some of which were approved in a
previous year, were constructed, inspected, approved as -built and placed into service. The
completion of these New Development projects together with Capital projects added
approximately 4.5 additional miles of pipeline to the existing potable water distribution
system.
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Construction Inspection
All new development and capital projects are inspected during construction for conformance
with the approved design as well as material and installation standards. The Water Utility has
two full time Construction Inspectors and when needed, utilize the services of a consultant
inspector to assist when specialized inspections are required. In 2014, our inspectors
inspected and approved 14 new development projects constructed by developers, 4 Water
Utility capital projects constructed by a contractor and 6 projects constructed by Water
Utility personnel.
-31-
CAPITAL PROJECTS
The Engineering and Planning Division manages the design and construction of capital
projects identified in the capital improvement program and annual operating budget. These
projects are designed to improve efficiencies to existing facilities and improve service levels.
These capital projects are described below.
Design Projects
➢ Engineering design of a new 12-inch potable main on Lambert Lane west of La Canada.
This is part of the Oro Valley Roadway Improvement project that widens the road to four
lanes. The design will be completed by June of 2015. Construction is expected to start
January 2016.
➢ Engineering design for the existing 24-inch Reclaim Main on Tangerine Road. This is
part of the RTA Road Improvement project from I-10 to the Town of Oro Valley.
Tangerine Road will be widened to four lanes. Multiple box culvert and drainage
structures will be installed that are conflicting with the existing reclaim main. Design is
expected to be complete by June of 2015. Construction is expected to start January 2016.
Construction Projects
Valve Replacement Program
Replaced existing air release valves (ARV), drain valve assemblies and adjust valve boxes in
the Copper Creek subdivision. This is expected to be complete by June of 2015
CAP Interconnect Proiect
Construction was completed on
the CAP interconnect on Calle
Buena Vista to serve customers
in the Oro Valley water service
area, and another connection on
Camino De Oeste near Linda
Vista for the Countryside water
service area. Tucson Water is
wheeling our CAP allocation
delivering 400 acre feet per year
to the Oro Valley water service
area and 100 acre feet per year
to the Countryside water service
area.
CAP Connection on Calle Buena Vista
-32-
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System Connection Proiect
System Connection Glover Road
INaranja 12-Inch Water Main Crossing
J A 12-inch potable water main was
installed across Naranja Road just
7 west of La Cholla Blvd. This
project was completed in February
J of 2015. This pipeline will deliver
water from a proposed future CAP
water booster station to blend and
improve system water quality. This
Jpipeline crossing was installed in
coordination with the Development
J Infrastructure Services Department
road improvement project to save
costs for fixture road cutting and
repaving.
A 12-inch pipeline connection
between two existing potable
12-inch mains on Glover Road
was installed to improve system
reliability, water quality and
reduce pressure fluctuations.
Naranja Road 12-Inch Water Main Crossing
-33-
Countryside Water Main Replacement
I
Construction will start February 2015 to install over 3,000 feet of 12-inch water main l
between Well CS and CS2 at the Countryside water service area to replace an existing and l
older undersized main. This project will reduce pressure loss and increase energy efficiency
which will reduce pumping costs and conserve energy. Project completion is expected to be
in June of 2015.
Wall Improvement and Upgrade at Countryside Well CS2
Wall Improvement Well CS2
Narania Road 12 — Inch Reclaimed Water Extension
A new 12-inch reclaimed water line
was installed along Naranja Road to
serve the newly constructed athletic
fields at Naranja Park. The new
reclaimed water line was connected to
the existing 12-inch reclaimed water
line 500-feet east of La Canada Drive
on the north side of Naranja Road and
extended approximately 3,300-feet to
the entrance of the park. This new
pipeline will also allow for future
extension and expansion of the
reclaimed water system.
An existing chain link fence was
removed and replaced with a
block stucco wall at well CS2 on
Hartman lane and completed on
June of 2014. This project
improved both security and
aesthetics at the site.
12-Inch Reclaimed Water Extension
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Future Projects:
Capital improvement projects planned for FY 2015-16 include the following:
➢ AMI Meter Replacement Phase 4 (Final)
➢ Hydro -pneumatic Tank Replacement
➢ Steel Tank Safety Improvements
➢ Reservoir Water Quality Improvements for 5 reservoirs
➢ Main Valve Replacement Program
➢ Energy Efficiency Booster Station Upgrade Program
➢ Design of 12-Inch Main Relocation on West Lambert Lane
System Connection Upgrades
➢ Tangerine Road Potable Water Main Extension
➢ Tangerine Road 24-Inch Reclaimed Water Main Relocation
The capital projects for existing system improvements FY 2015-16 are planned to be cash
funded. It is proposed that projects in future years will be cash funded and/or debt financed
through loan or bond proceeds.
Please see Appendix B for the 15-Year Capital Project Program.
-35-
r
FINANCIAL HIGHLIGHTS
l_
The Utility is financially sound and continues to manage its revenues, control expenditures
and reduce debt. A bond rating review for the Utility was performed and issued by Fitch
Ratings, Inc. on April 9, 2014. Fitch affirmed a bond rating of AA- with a stable outlook for
the Utility. The rating indicated that financial performance of the Utility has been steady and n
favorable, marked by sound debt service coverage and high liquidity ratios. The Utility has ll 11
refunded bonds over the last several years but still has an above average debt burden. The
Water Utility and Finance Department will continue to review outstanding bonds to look for I
opportunities to reduce debt.
Revenues and Expenditures
The Utility's revenue consists of potable and reclaimed water sales, groundwater
preservation fees, miscellaneous service fees and charges, water development impact fees
and interest income. The Water Utility has three funds:
The Operating Fund provides funding for the Water Utility administration and
operations as well as existing system improvements. The sources of revenue for this
fund are water sales and service related charges. The Groundwater Preservation Fees are
accounted for within this fund; however, the funds are dedicated to pay for debt or
capital costs related to renewable water resources.
➢ The Potable Water System Development Impact Fee Fund (PWSDIF) provides
funding for expansion related projects for new growth. The source of revenue for this
fund is potable water development impact fees. These fees are paid at the time a meter is
purchased. The funds collected ensure that the system expansion is paid for by new
development.
The Alternative Water Resources Development Impact Fee Fund (AWRDIF) L
provides funding for the development of renewable sources of water supply and any
infrastructure required for delivery of those resources. The source of revenue for this l
fund is alternative water resources development impact fees. These fees are paid by new l
development for that portion of renewable water supply and infrastructure attributed to
new growth. L
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The following table contains the actual revenue billed for FY 2013-14 for all funds within
the Utility:
Revenue Source
Amount Billed
Y 13-14
Potable Water Sales:
Residential
$
7,880,702
Commercial
$
898,412
Irrigation
$
1,148,497
Turf
$
122,453
Construction
$
284,857
Reclaimed Water Sales:
Turf
$
1,609,273
Construction
$
815
Irrigation
$
187,622
Misc. Service Fees & Charges
$
716,142
Groundwater Preservation Fees
$
2,598,639
Total Enterprise Fund
$15,447,412
Alternative Water Resources
Development Impact Fees
$
2,376,682
Development Impact Fees Potable
Water System
$
1,413,047
Interest Income (Loss)
$
114,219
Total All Funds for FY 2013-14
$19,351,360
The budgeted expenditures (excluding depreciation and amortization) for the Operating Fund
are compared to the actual expenditures for FY 2013-14 in the following table:
Expenditures
Budget
FY 2013-14
Actual Spent
FY 2013-14
Difference
Under Budget
Percentage
Under Budget
Personnel
$ 2,688,464
$ 2,640,661
($ 47,803)
2 %
O&M
$ 6,084,961
$ 5,452,992
($ 631,969)
10 %
Capital
$ 2,654,750
$ 2,412,438
$ 242,312)
9 %
Totals
$11,428,175
$10,506,091
$ 922,084
8 %
The Utility's O&M expenditures were under budget as a result of CAGRD savings resulting
from the efficient management of our water resources and not being able to purchase
Groundwater Extinguishment Credits. Capital expenditures were also less than budgeted due
to reductions in some of the capital projects.
] Outstanding Debt
The following table is a summary of the outstanding debt and the annual debt service
l payments (principal and interest) for all funds within the Utility:
-37-
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Fund
Bond
Series
Outstanding
Debt
As of 12/31/14
Debt Service
Payments
FY 2014-15
Maturity
Dates of
Bonds / Loans
Operating
2005
$ 1,324,950
$ 152,516
07/01/2025
Operating
2007
$14,770,440
$ 1,255,948
07/01/2026
Operating (WIFA)
2008
$ 3,235,942
$ 316,526*
07/01/2027
Operating (WIFA)
2009
$ 1,777,300
$ 149,368
07/01/2029
Operating
2012
$ 4,417,910
$ 582,284
07/01/2028
Operating
2012
$ 8,052,849
$ 1,061,372*
07/01/2028
Operating
2013
$ 4,935,000
$ 1,046,558
07/01/2019
Operating (WIFA)
2014
$ 1,832,196
$ 405,961
07/01/2029
PWSDIF
2012
$ 2,484,241
$ 327,424
07/01/2028
Totals
$42,830,828
$ 5,297,957
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The debt service payments with the asterisk (*) notation are for the reclaimed water delivery [
system and are paid with revenues from Groundwater Preservation Fees. The debt for the
reclaimed water system was originally accounted for in the Alternative Water Resources
Development Impact Fee fund and was transferred to the Operating fund in 2014.
Water Rates and Development Fees
The functions and duties of the Commission include annually reviewing and developing
recommendations for water revenue requirements, water rates and fee structures. The
Commission evaluates staff recommendations based on an annual water rates analysis to
ensure the recommendations meet Town policies and bond covenants. The Utility bases its
financial analysis on the American Water Works Association Cash Needs Approach.
The financial analysis for 2014 resulted in a recommendation to decrease the Groundwater
Preservation Fees (GPF) and increase the commodity rates. These changes were offsetting
and resulted in a slight decrease to monthly water bills for the majority of the utility's [
customers. There was a slight increase for the higher water use residential customers. This is
consistent with conservation pricing through a tiered rate structure. Other fees and charges
that were increased include the meter installation fees and landlord/tenant security deposits. L.
The Town Council approved the new rates on January 7, 2015. r
To meet the state statutory requirements regarding development impact fees, CH2M HILL L
performed an impact fee analysis on the Utility's Alternative Water Resources Development
Impact Fee and Potable Water System Development Impact Fee. The revised impact fees
were adopted by the Town Council on April 2, 2014 and became effective on July 1, 2014.
Based on the impact fee analysis, the revenue from the GPF is now being accounted for
within the Operating Fund. This revenue is dedicated to paying for debt and capital costs
related to renewable water resources. As such, the debt for the reclaimed water delivery
system was also transferred to the Operating Fund.
All current water rates, fees and charges including impact fees are available to view on the
Town website at http://www.orovalleyaz.govITown_Government/Water UtilitylWater_Rates_and Fees.htm
UZ
OPO\PIEY 4RpQw
TOWN OF ORO VALLEY
o�N—E-af WATER UTILITY COMMISSION
2015 ANNUAL REPORT
UTILITY STATISTICS
YEAR
Customer Base
Potable Water Deliveries in Gallons
Groundwater
CAP water
Total Potable Water Deliveries
Reclaimed Water Deliveries in Gallons
Bluestakes
Customer Contacts
Customer Service
Field Operations
Water Conservation -Audits
Water Quality Samples
Billing Collection Rate
2012
2013
2014
18,716
18,872
19,107
1, 830, 963, 000
1, 828, 363, 000
1, 688, 751, 000
435,552,000
498,581,000
595,535,000
2,266,515,000
2,326,944,000
2,284,286,000
683,925,000
714,880,000
718,660,000
3,537
3,589
3,938
31,437
34,068
34,387
3,241
8,635
6,725
143
125
113
2,250
4,021
1,360
99.99%
99.99%
98.82%
A-1
Reclaimed Water Deliveries in Gallons
714,880,000 718,660,000
750,000,000 683,925,000
700,000,000 ;u
650,000,000
600,000,000
550,000,000
500,000,000
2012 2013 2014
A-2
A-3
5,000
4,000
3,000
2,000
1,000
Water Quality Samples
2012 2013 2014
Bluestakes
3,537 3,589 3,938
4,000
3,000
2,000
1,000 /
2012 2013 2014
Billing Collection Rate
99.990 99.99% 98 82%
100.00%
98.00%
96.00%,
94.00% - —
i
92.00%
90.00%
2012 2013 2014
A-4
Accounts By User Type
As of December 31, 2014
18,177
Gallons Sold By User Type
January - December 2014
1,728,712,000
206,045,000
31
256,098,000
710,545,000
52,320,000
Revenue By User Type
January - December 2014
$7, 755,103
$801,
,157,667
■ Construction - 0%
❑ Commercial - 2%
■ Residential - 95%
■ Irrigation - 3%
• Reclaimed - 0%
■ Potable Turf - 0%
■ Construction - 1 %
❑ Commercial - 7%
■ Residential - 58%
■ Irrigation - 8%
® Reclaimed - 24%
■ Potable Turf - 2%
■ Construction - 2%
o Commercial - 7%
■ Residential - 66%
■ Irrigation - 10%
• Reclaimed - 14%
■ Potable Turf - 1 %
A-5
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TOWN OF ORO VALLEY
WATER UTILITY COMMISSION
2015 ANNUAL REPORT
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TOWN OF ORO VALLEY
DNNDED 9'le WATER UTILITY COMMISSION
2015 ANNUAL REPORT
APPENDIX C
ACRONYMS AND GLOSSARY
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ACRONYMS
ACH
Automated Clearing House (automatic payment program)
ADEQ
Arizona Department of Environmental Quality
ADWR
Arizona Department of Water Resources
AF
Acre -Feet
AMI
Advanced Metering Infrastructure
AWBA
Arizona Water Banking Authority
AWS
Assured Water Supply
AWWA
American Water Works Association
AWRDIF
Alternative Water Resources Development Impact Fee
AZWARN
Arizona Water and Wastewater Agency Response Network
BCP
Business Continuity Plan
CAGRD
Central Arizona Groundwater Replenishment District
CAP
Central Arizona Project
CAVSRP
Central Avra Valley Storage and Recovery Project
CAWCD
Central Arizona Water Conservation District
CCR
Consumer Confidence Reports
CPP
Capital Projects Program
CSWSA
Countryside Water Service Area
CY
Calendar Year
DAWS
Designation of Assured Water Supply
EPA
Environmental Protection Agency
ERP
Emergency Response Plan
FEMA
Federal Emergency Management Act
FY
Fiscal Year
GIS
Geographic Information System
GPF
Groundwater Preservation Fee
GPM
Gallons per Minute
GWA
Groundwater Allowance Account
IGA
Intergovernmental Agreement
IOC
Inorganic Compound
ISAC
Information Sharing and Analysis Center
LSCRRP
Lower Santa Cruz Replenishment Project
LTSC
Long -Term Storage Credit
MGD
Million Gallons per Day
MCL
Maximum Contaminate Level
M&I
Municipal and Industrial
OVWSA
Oro Valley Water Service Area
PDEQ
Pima County Department of Environmental Quality
PWSDIF
Water Resources Development Impact Fee
SCADA
Supervisory Control and Data Acquisition
WaterCASA
Water Conservation Alliance of Southern Arizona
WOW
Water on the Web
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GLOSSARY
Aquifer — An underground layer of water -bearing permeable rock or unconsolidated materials
(gravel, sand, or silt) from which groundwater can be extracted using a water well.
Central Avra Valley Storage and Recovery Project - An approved Underground Storage
Facility operated by Tucson Water located in the Tucson Active Management Area located
approximately one mile west of Sandario Road and just south of Mile Wide Road, in the Avra
Valley, Pima County, Arizona.
Colorado River Basin — The drainage basin of the Colorado River located in the
Southwestern United States and northwest Mexico. The 1,450-mile (2,330 km) river drains an
expansive, and watershed that encompasses parts of seven U.S. (Wyoming, Colorado, Utah,
New Mexico, Arizona and California) and two Mexican states (Sonora and Baja). Rising in
the central Rocky Mountains in the U.S., the river flows generally southwest across the
Colorado Plateau and through the Grand Canyon before reaching Lake Mead on the Arizona —
Nevada line, where it turns south toward the international border at Yuma, Arizona. After
entering Mexico, the Colorado approaches the large Colorado River Delta where it naturally
empties into the Gulf of California.
Developed Water Resources — Water resources and supply that are owned by a water provider
for which infrastructure has been constructed to deliver the water directly to a water service
area. For Oro Valley Water Utility this includes a portion of our groundwater rights, CAP
water allocation and reclaimed water. Undeveloped water resources are those water supplies
that do not have associated infrastructure but used indirectly by transfer or exchange, such as
a portion of our Long -Tern Storage Credits.
Effluent — Generally refers to wastewater that is treated and discharged to a natural water
course. For Oro Valley Water Utility its effluent is treated at facilities owned and operated by
Pima County. This treated wastewater effluent is the source of Oro Valley's reclaimed water
Fifteen Year Capital Projects Plan — A long-term plan for the future development of water
related projects to develop and deliver water supply to our community. It includes existing
system improvements and expansion related projects to meet future demands for both the
potable water system(s) and the reclaimed water system.
Groundwater — The water located in an aquifer beneath Earth's surface in soil pore spaces and
in the fractures of rock formations. The depth at which soil pore spaces or fractures and voids
in rock become completely saturated with water is called the water table.
Groundwater Extinguishment Credits — Credits that are generated when a grandfathered
groundwater right is extinguished or retired and never be used again. The credits are issued a
certificate from the Arizona Department of Water Resources. Ownership of the credits can be
transferred from the owner to another entity within the same Active Management Area.
Infrastructure Improvements Plan (IIP) — A plan required that identifies projects that will
be built for new growth and development within a governmental jurisdiction. An IIP is required
1 to be developed for the inclusion of associated costs when calculating development impact
J fees.
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Kai Farms — An approved Groundwater Savings Facility located at a farm near Redrock,
Arizona that Oro Valley Water Utility uses to build up storage credits by selling a portion of
jour
CAP water to the farm for irrigation use. Credits are built up because the farm uses our
l 1
CAP water and does not use groundwater for irrigation. The groundwater not used becomes a
to Oro Valley Water Utility for future use.
ncredit
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Lake Mead — The largest water storage reservoir in the United States with a capacity of
25,900,000 acre feet. It is located on the Colorado River about 24 mi southeast of Las Vegas,
L1
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Nevada. Hoover Dam forms the lake and provides hydro -electric power.
Lake Powell — A water storage reservoir located on the Colorado River near Page, Arizona
n
with a capacity of 24,300,000 acre feet. Glen Canyon Dam forms the lake and provides hydro-
electric power.
Long -Term Groundwater Storage Credit — A credit for storing CAP water or wastewater
effluent that is accrued when this water is delivered to and recharged into an approved
underground water storage facility. Once the water is recharged and stored and a deduction is
made for losses to the aquifer, it becomes a credit that can be used in the future either by direct
delivery or used as credits to replace groundwater pumped from recovery wells.
Lower Santa Cruz Replenishment Project — An approved Underground Storage Facility
operated by the Central Arizona Project located in the Tucson Active Management Area near
Marana, Arizona.
"Paper" Water — A term used to describe water that is not directly delivered and is recovered
through credits. Recovery of these credits occurs through pumping from permitted recovery
wells in a location that is of more than one mile from the recharge and storage facility where
the credits were originally stored.
Pima Mine Road Recharge Project — An approved Underground Storage Facility operated
by the Central Arizona Project located in the Tucson Active Management Area near Sahuarita,
Arizona.
Tucson Active Management Area — One of five Active Management Areas in Arizona
J established under the 1980 Groundwater Code to manage groundwater usage through the
J Assured water Supply Program.
"Wet" Water — A term used to describe water that is directly delivered from a source of
supply such as directly off of a canal or from recovery wells that are located within one mile
of recharge and storage facilities where the recovered credits were originally stored.
C-3